package com.tang.lease.web.admin.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.tang.lease.common.constant.RedisConstant;
import com.tang.lease.common.exception.LeaseException;
import com.tang.lease.common.result.ResultCodeEnum;
import com.tang.lease.common.utils.JwtUtil;
import com.tang.lease.model.entity.SystemUser;
import com.tang.lease.model.enums.BaseStatus;
import com.tang.lease.web.admin.mapper.SystemUserMapper;
import com.tang.lease.web.admin.service.LoginService;
import com.tang.lease.web.admin.vo.login.CaptchaVo;
import com.tang.lease.web.admin.vo.login.LoginVo;
import com.tang.lease.web.admin.vo.system.user.SystemUserInfoVo;
import com.wf.captcha.SpecCaptcha;
import com.wf.captcha.base.Captcha;
import org.apache.commons.codec.digest.DigestUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Service;

import java.util.UUID;
import java.util.concurrent.TimeUnit;

@Service
public class LoginServiceImpl implements LoginService {
    @Autowired
    private StringRedisTemplate stringRedisTemplate;
    @Autowired
    private SystemUserMapper systemUserMapper;


    @Override
    public CaptchaVo getCaptcha() {
        SpecCaptcha specCaptcha = new SpecCaptcha(130, 48, 4);//图形验证码
        specCaptcha.setCharType(Captcha.TYPE_DEFAULT);
        String code = specCaptcha.text().toLowerCase();//验证码的值
        String image = specCaptcha.toBase64();
        String key= RedisConstant.ADMIN_LOGIN_PREFIX+ UUID.randomUUID();
        stringRedisTemplate.opsForValue().set(key,code,RedisConstant.ADMIN_LOGIN_CAPTCHA_TTL_SEC, TimeUnit.SECONDS);
        return new CaptchaVo(image,key);
    }

    @Override
    public String login(LoginVo loginVo) {
        //校验验证码是否为空
        if (loginVo.getCaptchaCode()==null){
            throw new LeaseException(ResultCodeEnum.ADMIN_CAPTCHA_CODE_NOT_FOUND);
        }
        String code = stringRedisTemplate.opsForValue().get(loginVo.getCaptchaKey());
        //校验验证码是否过期
        if (code==null){
            throw new LeaseException(ResultCodeEnum.ADMIN_CAPTCHA_CODE_EXPIRED);
        }
        //校验验证码的值是否正确
        if (!code.equals(loginVo.getCaptchaCode().toLowerCase())){
            throw new LeaseException(ResultCodeEnum.ADMIN_CAPTCHA_CODE_ERROR);
        }
        //校验用户是否存在
        SystemUser systemUser = systemUserMapper.selectOneByUsername(loginVo.getUsername());
        if (systemUser==null){
            throw new LeaseException(ResultCodeEnum.ADMIN_ACCOUNT_NOT_EXIST_ERROR);
        }
        //校验用户状态
        if (systemUser.getStatus()== BaseStatus.DISABLE){
            throw new LeaseException(ResultCodeEnum.APP_ACCOUNT_DISABLED_ERROR);
        }
        //校验用户密码是否正确
        if (!systemUser.getPassword().equals(DigestUtils.md5Hex(loginVo.getPassword()))){
            throw new LeaseException(ResultCodeEnum.ADMIN_ACCOUNT_ERROR);
        }

        return JwtUtil.createToken(systemUser.getId(),systemUser.getUsername());
    }

    @Override
    public SystemUserInfoVo getLoginUserInfo(Long userId) {
        SystemUser systemUser = systemUserMapper.selectById(userId);
        SystemUserInfoVo userInfoVo = new SystemUserInfoVo();
        userInfoVo.setName(systemUser.getName());
        userInfoVo.setAvatarUrl(systemUser.getAvatarUrl());
        return userInfoVo;
    }
}
